Heave compensation system of lifting pipeline for deep-sea mining based on combined action of vibration absorber and accumulator |
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| Authors: | Yang Hengling Liu Shaojun |
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| Institution: | 1. College of Mechanical and Electrical Engineering, Central South University, Changsha, China;2. Shenzhen Research Institute of Central South University, Shenzhen, China;3. State Key Laboratory of Deep Sea Mineral Researches Development and Utilization Technology, Changsha, China65065325@qq.com;5. State Key Laboratory of Deep Sea Mineral Researches Development and Utilization Technology, Changsha, China |
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| Abstract: | ABSTRACTA heave compensation system combined with a vibration absorber and accumulator is proposed, with regard to the requirement for poly-metallic nodule mining systems at an ocean depth of 6,000?m in China. The principle of the compensation system was analyzed, its main parameters were designed, and its mathematical model was established. The system performance was simulated and analyzed in MATLAB, and the frequency domain characteristics and compensation rate of the system with different volume accumulators, and with or without vibration absorbers, were compared. A simulation test of the compensation system was conducted. The proposed compensation system had a better compensation effect for a random wave interference under level-6 sea conditions, and the compensation rate being more than 72% with optimal system parameters. |
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| Keywords: | Accumulator deep-sea mining heave compensation vibration absorber |
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